What it is
Auto-mode fallback telemetry now records why a fallback model was used.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.261.
Presence across releases
0The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
First cited
0No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.
Gate readings
0No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.
Names beside it
Every feature flag in the inventory starting tengu_auto_mode, up to twelve of them.
tengu_auto_mode_availability_changedClaude Code now tracks whether auto mode's availability changes during a session, not just at startup never mined
tengu_auto_mode_beta_latchThe automatic retry that would drop a rejected classifier beta can never trigger in this build. never mined
tengu_auto_mode_classifier_queueNo description from anybody. v2.1.218
tengu_auto_mode_configAuto-mode permission checks can score risk 0-100 instead of yes/no, but only for configured models. v2.1.138
tengu_auto_mode_context_over_ceilingNew telemetry fires when auto-mode context is too large and gets withheld entirely. never mined
tengu_auto_mode_context_static_over_budgetAuto-mode classifier context now trims progressively to stay within a byte budget. never mined
tengu_auto_mode_context_withheldNew telemetry fires when auto-mode context is too large and gets withheld entirely. never mined
tengu_auto_mode_decisionSubagent results can be tagged to show which parts Claude Code wrote versus the model. never mined
tengu_auto_mode_denial_dialog_auto_deniedAuto mode can show a prompt that denies itself after two minutes when you are away; off by default. never mined
tengu_auto_mode_denial_limit_exceededMore auto-mode permission events record whether the tool was from an MCP server. never mined
tengu_auto_mode_entry_warning_shownNew automatic prompts appear: a first-time auto mode warning, a spending threshold dialog and a worktree tip. never mined
tengu_auto_mode_env_onboarding_laterAuto-mode environment setup onboarding now waits for repeated denials before offering again never mined
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the feature flag does. All feature flags.